Add 50/15 and 21/56
1st number: 3 5/15, 2nd number: 21/56
50/15 + 21/56 is 89/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
50/15 = 50 × 56/15 × 56 = 2800/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
21/56 = 21 × 15/56 × 15 = 315/840 - Add the two like fractions:
2800/840 + 315/840 = 2800 + 315/840 = 3115/840 - 3115/840 simplified gives 89/24
- So, 50/15 + 21/56 = 89/24
In mixed form: 317/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/15+42/56 50/30+21/56 50/15+63/56 50/45+21/56 50/75+21/56